Baking-powder



UNITED STATES PATENT OFFICE.

WILLIAM P. OLOTWORTHY, on BALTIMOR MARYLAND.

BAKING-POWDER.

SPECIFICATION formingpart of Letters Patent No. 273,958, dated March 13, 1883.

Application filed December 7, 1882. (No specimens.)

To all whom zt may concern:

Be it known that I, WILLIAM PITT 01,01- W ORTHSQa citizen'ot' the United States, residing at the city of Baltimore, in the State of Maryland, have invented a new and useful composition ofniatter as a Baking-Powder, to be used in bread-making, of which composition the following is a specification.

My said invention relates to that class of compounds known as baking-powders, and used as a substitute for yeast to aerate dough for the various kinds of bread-such as loaves, rolls, cakes, and similar articles of food--as will readily-beunderstood, and substantially as particnlarizedin noy patent for an improvement in baking-powders, No. 206,930, dated August 13, 1878.

What I claim as new, and desire to secure 25 by Letters Patent of the United States, is-

A baking-powder composed of tartrateof' alumina, bicarbonate of soda, and starch or flour, substantially in the proportions and for the purpose above specified.

W. lfIlT GLOTWO'RTHY. v

Witnesses LoUIs HORPEL, ALLEN THOMAS. 

